19984329

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{60013}}^1$

素因数の和:60056

約数の個数: 12

約数和(自身を含む): 29646916

約数和(自身を除く): 9662587

約数列:

[1, 3, 9, 37, 111, 333, 60013, 180039, 540117, 2220481, 6661443, 19984329]

約数ペア:

[(1, 19984329), (3, 6661443), (9, 2220481), (37, 540117), (111, 180039), (333, 60013)]